class setting:
    '''存储设置'''
    def __init__(self):
        '''初始化游戏设置'''
        '''screen setting'''
        self.screen_width =1200
        self.screen_height=800
        self.bg_color=(230,230,230)
        self.ship_speed=1.75
        self.screen_style='FULLSCREEN'
        self.bullet_speed=1.0
        self.bullet_width=3
        self.bullet_height=15
        self.bullet_color=(60,60,60)
        self.bullet_allowed=3